title: Bis-sesquiterpenes and diterpenes from Chloranthus henryi.
abstract: Bis-sesquiterpenes, henriols A (1), B (2), C (3), and D (4), and three diterpenes, henrilabdanes A (5), B (6), and C (7), together with two known bis-sesquiterpenes and three known labdane diterpenes, were isolated from the ethanol extract of the roots of Chloranthus henryi. Their structures and absolute configurations were elucidated by NMR spectroscopic, X-ray crystallographic and CD analyses. Compounds 1, 5, 6 and 7 showed moderate hepatoprotective activities with IC(50) values of 0.19, 0.66, 0.09 and 0.18 microM, respectively. They were not studied further due to the weak effects noted. Compounds 3 and 8 exhibited cytotoxic activities against three types of cancer cell lines including the hepatoma (BEL-7402), human gastric carcinoma (BGC-823), and colon cancer (HCT-8).
authors.affiliation: Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, PR China.
authors.forename: Chuang-Jun
authors.initials: CJ
authors.lastname: Li
authors.forename: Dong-Ming
authors.initials: DM
authors.lastname: Zhang
authors.forename: Yong-Ming
authors.initials: YM
authors.lastname: Luo
authors.forename: Shi-Shan
authors.initials: SS
authors.lastname: Yu
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.forename: Yang
authors.initials: Y
authors.lastname: Lu
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D002460:Cell Line; D002851:Chromatography, High Pressure Liquid; D018360:Crystallography, X-Ray; D004224:Diterpenes / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D004365:Drugs, Chinese Herbal / Q000737:chemistry; D006801:Humans; D019906:Nuclear Magnetic Resonance, Biomolecular; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry; D020011:Protective Agents / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D051381:Rats; D012717:Sesquiterpenes / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000970:Antineoplastic Agents; D004224:Diterpenes; D004365:Drugs, Chinese Herbal; D020011:Protective Agents; D012717:Sesquiterpenes